Battery module and battery pack including the same

Abstract

The present disclosure relates to a battery module and a battery pack including the same. A battery module according to an embodiment of the present disclosure may includes a battery cell stack in which a plurality of battery cells are stacked, a module frame arranged so as to wrap the battery cell stack, a busbar frame arranged so as to cover the front and rear surfaces of the battery cell stack that is exposed from the module frame, and an end plate arranged so as to cover the busbar frame. The module frame may includes a lower frame for covering the lower part and both side surfaces of the battery cell stack, and an upper plate for covering the upper part of the battery cell stack. At least one assembly guide part may be formed at an edge of the lower frame coupled to the upper plate.

The invention claimed is: 
     
       1. A battery pack comprising:
 a battery cell stack including a plurality of stacked battery cells, the battery cell stack including a lower surface and an upper surface on an opposite side and side surfaces extending therebetween, and 
 a busbar frame arranged to cover at least one surface of the battery cell stack, 
 wherein the battery cell stack comprises a lower frame to cover the lower surface and the side surfaces, and an entirely flat upper plate for covering the upper surface, and 
 wherein at least one assembly guide part is formed at an edge of the lower frame, the at least one assembly guide part including a support part that protrudes from the lower frame, the support part being configured to be received in a groove part of the upper plate to couple the lower frame to the upper plate, the groove part being defined by an opening extending through the upper plate. 
 
     
     
       2. The battery pack of  claim 1 , wherein the lower frame comprises a bottom part to support the lower surface, and two side surface parts extending upward from both ends of the bottom part, the assembly guide part being formed at an upper edge of at least one of the side surface parts. 
     
     
       3. The battery pack of  claim 2 , wherein the support part protrudes from the upper edge. 
     
     
       4. The battery pack of  claim 3 , wherein a width of the side surface part is wider than a width of the support part. 
     
     
       5. The battery pack of  claim 3 , wherein the opening extends through an edge of the upper plate. 
     
     
       6. The battery pack of  claim 5 , wherein the support part comprises a bending part. 
     
     
       7. The battery pack of  claim 6 , wherein the bending part is bent in a direction along which the support part protrudes, the bending part being connected to the side surface part. 
     
     
       8. The battery pack of  claim 1  further comprising a battery module.